Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tran » trung tuan, trung thanh, trung tam
hoc thieu » hoc hien
tran tong » tran trong, tran thong, tran tuong
tong cong » trong cong, cong cong, dung cong
cong san » cong tac
san khan » san khau, san khac, san phan
khan cap » khan ap, than cap, khoan cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) sach - thanh trung tran tong cong san khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) sach - thanh trung tran tong cong san khan cap.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) sach - thanh trung tran tong cong san khan cap*.